package org.jeecg.modules.controller;


import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.websocket.*;
import javax.websocket.server.PathParam;
import javax.websocket.server.ServerEndpoint;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CopyOnWriteArraySet;

/**
 * @Author scott
 * @Date 2019/11/29 9:41
 * @Description: 此注解相当于设置访问URL
 */
@Component
@Slf4j
@ServerEndpoint("/userWebSocket/{userId}") //此注解相当于设置访问URL
public class UserWebSocket {


    private Session session;

    private static CopyOnWriteArraySet<UserWebSocket> webSockets =new CopyOnWriteArraySet<>();
    private static Map<String,Session> sessionPool = new HashMap<String,Session>();
    @OnError
    public void onerror(Session session, Throwable throwable){  }

    @OnOpen
    public void onOpen(Session session, @PathParam(value="userId")String userId) {
        try {
            this.session = session;
            webSockets.add(this);
            sessionPool.put(userId, session);
            log.info("【userwebsocket消息】有新的连接，总数为:"+webSockets.size());
        } catch (Exception e) {
        }
    }

    @OnClose
    public void onClose() {
        try {
            webSockets.remove(this);
            log.info("【userwebsocket消息】连接断开，总数为:"+webSockets.size());
        } catch (Exception e) {
        }
    }

    @OnMessage
    public void onMessage(String message) {
        log.info("【userwebsocket消息】收到客户端消息:"+message);

    }

    // 此为广播消息
    public void sendAllMessage(String message) {
        log.info("【userwebsocket消息】广播消息:"+message);
        for(UserWebSocket webSocket : webSockets) {
            try {
                if(webSocket.session.isOpen()) {
                    webSocket.session.getAsyncRemote().sendText(message);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    // 此为单点消息
    public void sendOneMessage(String userId, String message) {
        Session session = sessionPool.get(userId);
        if (session != null&&session.isOpen()) {
            try {
                log.info("【userwebsocket消息】 单点消息:"+message);
                session.getAsyncRemote().sendText(message);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    // 此为单点消息(多人)
    public void sendMoreMessage(String[] userIds, String message) {
        for(String userId:userIds) {
            Session session = sessionPool.get(userId);
            if (session != null&&session.isOpen()) {
                try {
                    log.info("【userwebsocket消息】 单点消息:"+message);
                    session.getAsyncRemote().sendText(message);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }

    }





}
